/*
 * This file Copyright (c) 2015. Walle.
 * (http://www.wallellen.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the
 * Walle Agreement (WA) and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or WA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Walle Agreement (WA), this file
 * and the accompanying materials are made available under the
 * terms of the WA which accompanies this distribution, and
 * is available at http://www.wallellen.com/agreement.html
 *
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 */

package com.wallellen.parameter;

import com.wallellen.core.ParameterService;
import com.wallellen.parameter.service.DictionaryEntityServiceInter;
import com.wallellen.parameter.service.ParameterServiceInter;
import com.wallellen.parameter.service.impl.ConstantVarService;
import com.wallellen.parameter.service.impl.PropertiesFileService;
import com.wallellen.util.spring.BeanFactory;

import java.util.List;
import java.util.Map;

/**
 * Created by walle on 12/12/15.
 */

public class ParamService
        implements ParameterService {
    private static ParameterServiceInter parametersLocal;
    private static DictionaryEntityServiceInter dictionaryentitysLocal;
    private static ParameterService localstatic;

    public static ParameterService getInstance() {
        if (localstatic == null) {
            localstatic = new ParamService();
        }
        return localstatic;
    }

    private ParameterServiceInter getParameterService() {
        if (parametersLocal == null) {
            parametersLocal = (ParameterServiceInter)
                    BeanFactory.getBean("parameterServiceImpl");
        }
        return parametersLocal;
    }

    private DictionaryEntityServiceInter getDictionaryEntityService() {
        if (dictionaryentitysLocal == null) {
            dictionaryentitysLocal = (DictionaryEntityServiceInter)
                    BeanFactory.getBean("dictionaryEntityServiceImpl");
        }
        return dictionaryentitysLocal;
    }

    public void setPropertiesFiles(List<String> propertiesFiles) {
        for (String name : propertiesFiles)
            if (PropertiesFileService.registConstant(name))
                System.out
                        .println("注册配置文件:" +
                                name +
                                ".properties(com.wallellen.parameter.ParamService)");
    }

    public Map<String, String> getDictionary(String key) {
        return getDictionaryEntityService().getDictionary(key);
    }

    public List<Map.Entry<String, String>> getDictionaryList(String key) {
        return getDictionaryEntityService().getDictionaryList(key);
    }

    public String getParameter(String key) {
        key = key.trim();

        String value = getParameterService().getValue(key);
        if (value != null) {
            return value;
        }

        value = PropertiesFileService.getValue(key);
        if (value != null) {
            return value;
        }

        value = ConstantVarService.getValue(key);
        if (value != null) {
            return value;
        }
        throw new RuntimeException("无法获得参数:" + key);
    }

    public String getParameter(String key, String userId) {
        String value = getParameterService().getValue(key, userId);
        if (value != null) {
            return value;
        }

        value = PropertiesFileService.getValue(key);
        if (value != null) {
            return value;
        }

        value = ConstantVarService.getValue(key);
        if (value != null) {
            return value;
        }
        throw new RuntimeException("无法获得参数:" + key);
    }
}